Magnetic Properties of Mixed Triangle-Based Ladder Magnets (C1TET-TTF)(FeBr4)1 - x(FeCl4)x (C1TET-TTF: 4,5-Ethylenedithio-4′,5′-bis(methylthio)tetrathiafulvalene)
作者： Masaya Enomoto , Akira Miyazaki , Toshiaki Enoki
DOI: 10.1246/BCSJ.74.459
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摘要: Isostructural magnets (C1TET-TTF)FeX4 (X = Br, Cl) are featured with a triangle-based ladder lattice comprised of an Fe3+ zigzag chain where donor dimer bridges between next nearest neighboring sites. The FeCl4- salt is antiferromagnet its easy axis tilted from the sheet, FeBr4- shows weak ferromagnetism, antiferromagnetic behavior lying on sheet. We investigate magnetic properties mixed crystal (C1TET-TTF)(FeBr4)1 - x (FeCl4)x in order to reveal origin differences magnetism. strengths exchange interactions varying can be understood basis inter-anion/donor atomic contact lengths crystal. Weak ferromagnetism survives sheet concentration region ≈ 0.2. Then disappears above ≥ 0.42. In high range ∼ 0.4-0.8, ordered state deviates ordinary antiferromagnet, due competition two cons...
csj.jp参考文章(23)
Masaya Enomoto, Akira Miyazaki, Toshiaki Enoki, Magnetic Properties of (C1TEX-TTF)FeBr4(X˭S, Se) Molecular Crystals and Liquid Crystals. ,vol. 335, pp. 1005- 1014 ,(1999) , 10.1080/10587259908028873
Hidekazu Tanaka, Fujio Tsuruoka, Tetsuya Ishii, Haruhiko Izumi, Katsunori Iio, Kazukiyo Nagata, Magnetic Phase Transition in (CH3)4NMnBr3(TMMB) Journal of the Physical Society of Japan. ,vol. 55, pp. 2369- 2374 ,(1986) , 10.1143/JPSJ.55.2369
A. Otsuka, G. Saito, T. Nakamura, M. Matsumoto, Y. Kawabata, K. Honda, M. Goto, M. Kurahashi, Synthesis and physical properties of semicapped C6S8 compounds connected with their formation of monolayers and LB films at air-water interface Synthetic Metals. ,vol. 27, pp. 575- 580 ,(1988) , 10.1016/0379-6779(88)90202-0
Toshiaki Enoki, Jun-Ichi Yamaura, Akira Miyazaki, MOLECULAR MAGNETS BASED ON ORGANIC CHARGE TRANSFER COMPLEXES Bulletin of the Chemical Society of Japan. ,vol. 70, pp. 2005- 2023 ,(1997) , 10.1246/BCSJ.70.2005
Akira Miyazaki, Takashi Umeyama, Toshiaki Enoki, Eiji Ogura, Yoshiyuki Kuwatani, Masahiko Iyoda, Hiroyuki Nishikawa, Isao Ikemoto, Koichi Kikuchi, Novel Molecular Magnets Based on Organic Complexes Molecular Crystals and Liquid Crystals. ,vol. 334, pp. 379- 388 ,(1999) , 10.1080/10587259908023335
S. Ramasesha, S. Ramasesha, H. R. Krishnamurthy, Swapan Kumar Pati, Diptiman Sen, R. Chitra, A comparative study of the phase diagrams of spin-½ and spin-1 antiferromagnetic chains with dimerization and frustration Journal of Physics: Condensed Matter. ,vol. 9, pp. 219- 230 ,(1997) , 10.1088/0953-8984/9/1/023
T. Enoki, M. Enomoto, M. Enomoto, K. Yamaguchi, N. Yoneyama, J. Yamaura, A. Miyazaki, G. Saito, Molecular Magnets Based on Charge Transfer Complexes Molecular Crystals and Liquid Crystals. ,vol. 285, pp. 19- 26 ,(1996) , 10.1080/10587259608030773
Akihiro Otsuka, Gunzi Saito, Kazuyo Ohfuchi, Michiko Konno, C1TET-TTF and its Related Compounds as Single Component Molecular Conductors Phosphorus Sulfur and Silicon and The Related Elements. ,vol. 67, pp. 333- 338 ,(1992) , 10.1080/10426509208045855
I. R. Marsden, M. L. Allan, R. H. Friend, M. Kurmoo, D. Kanazawa, P. Day, G. Bravic, D. Chasseau, L. Ducasse, W. Hayes, Crystal and electronic structures and electrical, magnetic, and optical properties of two copper tetrahalide salts of bis(ethylenedithio)-tetrathiafulvalene Physical Review B. ,vol. 50, pp. 2118- 2127 ,(1994) , 10.1103/PHYSREVB.50.2118
Takehiko Mori, Akiko Kobayashi, Yukiyoshi Sasaki, Hayao Kobayashi, Gunzi Saito, Hiroo Inokuchi, The Intermolecular Interaction of Tetrathiafulvalene and Bis(ethylenedithio)tetrathiafulvalene in Organic Metals. Calculation of Orbital Overlaps and Models of Energy-band Structures Bulletin of the Chemical Society of Japan. ,vol. 57, pp. 627- 633 ,(1984) , 10.1246/BCSJ.57.627